spirv attribute errors in proc macros don't show errors properly due to span being the macro invocation

If you codegen spirv entry points and you typo an attribute, you get this error not showing you which one you typo'ed, since the span is from the macro invocation.

  error: unknown argument to spirv attribute
    --> node-graph/graster-nodes/src/adjustments.rs:44:1
     |
  44 | #[node_macro::node(category("Raster: Adjustment"), shader_node(PerPixelAdjust))]
     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
     |
     = note: this error originates in the attribute macro `node_macro::node` (in Nightly builds, run with -Z macro-backtrace for more info)

System Info

• Rust-GPU master

Reproduisez la faute de frappe dans l’attribut spirv de node-graph/graster-nodes/src/adjustments.rs:44 et examinez le signalement des erreurs de la macro d’attribut node_macro::node. Suivez la manière dont le span de l’attribut est sélectionné, puis vérifiez qu’un argument inconnu identifie l’attribut en cause plutôt que la seule invocation de la macro.